15996981

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 29187648

約数和(自身を除く): 13190667

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 761, 1001, 1617, 1911, 2283, 3003, 5327, 7007, 8371, 9893, 15981, 21021, 25113, 29679, 37289, 58597, 69251, 108823, 111867, 175791, 207753, 326469, 410179, 484757, 761761, 1230537, 1454271, 2285283, 5332327, 15996981]

約数ペア:

[(1, 15996981), (3, 5332327), (7, 2285283), (11, 1454271), (13, 1230537), (21, 761761), (33, 484757), (39, 410179), (49, 326469), (77, 207753), (91, 175791), (143, 111867), (147, 108823), (231, 69251), (273, 58597), (429, 37289), (539, 29679), (637, 25113), (761, 21021), (1001, 15981), (1617, 9893), (1911, 8371), (2283, 7007), (3003, 5327)]